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MARU Newsltter Spring 2023MARU supplied various sizes of Gate Valves and Hydraulic Dampening Check Valve from DN80 to DN450 for the applications in Sewage Treatment Plant Sludge Faciltiies and Biogas productions. BS EN standards applied for both Gate Valves and Check Valves all with Gunmetal as Valve seat garantee an absolute zero leakage on Bench Hydraulic Test to BS EN 12266-1:2003 achieving Rate A zero leakage standard . Check valves are incorporated with hydraulic damper connected to the hinge pin of the check valve. The damping action generated by the damper can prevent slamming of the valve when the respective pump suddenly shuts down or starts
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